Existing type inductor
By incorporating a light-controlled potentiometer, a sensitivity potentiometer, and a time potentiometer into the presence sensor, the problem of the sensor's inability to adjust the light control threshold, sensing sensitivity, and delay time is solved. This enables the sensor to accurately detect and flexibly adjust in different environments, improving user experience and energy efficiency.
Patent Information
- Application Number
- CN202520277246.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing presence sensors cannot adjust light control thresholds, sensing sensitivity, and set delay times according to different usage requirements, resulting in poor user experience and energy waste.
A presence sensor was designed, which allows users to adjust the light control threshold, sensing sensitivity, and delay time according to their needs by setting up a light control potentiometer, a sensitivity potentiometer, and a time potentiometer on the control circuit board, and uses a TOF module for high-precision distance measurement.
It enables the sensor to accurately detect and flexibly adjust in different environments, improves the user experience, and avoids false triggering and energy waste.
Smart Images

Figure CN223796690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sensor technology, specifically to a presence sensor. Background Technology
[0002] In today's rapidly evolving technological landscape, smart homes have become an integral part of modern life. Among them, smart lighting systems are particularly popular due to their convenience, energy efficiency, and personalized customization. The combination of smart lighting and presence sensors has further elevated the level of intelligence in lighting. Presence sensors, as advanced sensors capable of detecting and identifying the presence of objects in the environment, enable automated and intelligent lighting control when applied to smart lighting systems. By sensing the presence or movement of a person, presence sensors can precisely trigger the switching on and off of lighting equipment, automatically turning on the lights when someone enters the room and turning them off when they leave, thus satisfying lighting needs while significantly saving energy.
[0003] Existing devices have several drawbacks in use. For example, existing presence sensors cannot adjust the light control threshold, sensing sensitivity, and delay time according to different usage needs. Different environments have different light requirements, and a fixed light control threshold cannot adapt to all environments. If the sensing sensitivity is too high, it may frequently trigger lighting or other devices due to minor environmental changes (such as curtains being blown by the wind or pet activity), causing unnecessary inconvenience to users. If the sensing sensitivity is too low, it may delay the triggering of lighting or other devices because it cannot detect the presence or movement of a person in time, affecting the user experience. In addition, a fixed delay time cannot meet the needs of different users. For example, in areas where people need to stay for a short time, if the delay time is too short, the lighting equipment may turn off before people leave, affecting usability. In areas where people need to stay for a long time, if the delay time is too long, the lighting equipment may remain on after people leave, resulting in energy waste. Utility Model Content
[0004] The purpose of this invention is to provide a presence sensor that solves the problem that existing presence sensors cannot adjust the light control threshold, sensing sensitivity, and set the delay time according to different usage requirements.
[0005] This utility model provides the following technical solution: a presence sensor, including an inner cover, a control circuit board is snapped onto the inner side of the inner cover by a snap fastener, a TOF module is provided on the control circuit board, and a light control potentiometer, a sensitivity potentiometer and a time potentiometer are respectively provided on the control circuit board, the inner cover is snapped onto the upper surface of the bottom cover by a snap fastener, a power circuit board is provided between the control circuit board and the bottom cover, the power circuit board is fixedly connected to the inner side of the bottom cover by screws, and a front cover is snapped onto the upper surface of the bottom cover by a snap fastener.
[0006] In the above solution, components such as the inner cover, control circuit board, power circuit board, and bottom cover are modularly assembled using fasteners and screws, simplifying the production and assembly process and making subsequent maintenance and troubleshooting easier and faster. The control circuit board is equipped with a light control potentiometer, a sensitivity potentiometer, and a time potentiometer. These potentiometers allow users to flexibly adjust various parameters of the sensor according to actual needs and environmental conditions. For example, the light control potentiometer can set different light thresholds to adapt to applications under different lighting conditions; the sensitivity potentiometer can adjust the sensor's sensitivity to adapt to the detection needs of different objects or people; and the time potentiometer can set different delay times to meet different application scenarios. The TOF module on the control circuit board is a high-precision distance measurement technology that can quickly and accurately measure the distance between an object and the sensor, thereby enabling the detection of the presence of a person or object. This technology not only improves detection accuracy but also enhances the stability and reliability of the sensor.
[0007] As a preferred embodiment of the above technical solution, openings are provided on the cover corresponding to the positions of the light control potentiometer, the sensitivity potentiometer, and the time potentiometer. Potentiometer knobs are fixedly connected to the upper surfaces of the light control potentiometer, the sensitivity potentiometer, and the time potentiometer, and the tops of the three potentiometer knobs pass through the corresponding openings.
[0008] In the above scheme, the corresponding parameters can be adjusted by rotating the potentiometer knobs on the light control potentiometer, sensitivity potentiometer, and time potentiometer.
[0009] As a preferred embodiment of the above technical solution, a photodiode and a panel indicator light are respectively provided on both sides of the TOF module. The photodiode and the panel indicator light are fixedly mounted on the control circuit board. A module transparent cover is snapped onto the TOF module. An opening is provided on the inner cover corresponding to the position of the TOF module. An observation port is provided on the outer cover corresponding to the positions of the TOF module, the photodiode, and the panel indicator light.
[0010] In the above solution, observation ports are provided on the cover corresponding to the positions of the TOF module, photodiode, and panel indicator lights. This design not only makes it convenient for users to observe the status of the panel indicator lights and understand the working status of the sensors, but also allows the photodiode to detect the brightness of the surrounding ambient light through the observation ports, achieving more accurate ambient light perception.
[0011] As a preferred embodiment of the above technical solution, a wiring groove is provided on the lower end face of the bottom cover at the position corresponding to the wiring port of the power circuit board.
[0012] In the above solution, the design of the wiring slot allows the power cord to be connected to the wiring port of the power circuit board in an orderly and neat manner, avoiding the mess and random pulling of the power cord, thereby improving the cleanliness and aesthetics of the entire sensor.
[0013] As a preferred embodiment of the above technical solution, the bottom cover has four mounting slots arranged in a rectangular array.
[0014] In the above scheme, four mounting slots are arranged in a rectangular array on the bottom cover, providing a stable and reliable mounting base for the sensor.
[0015] As a preferred embodiment of the above technical solution, the lower end face of the bottom cover is marked with a wiring diagram.
[0016] In the above solution, the wiring diagram allows installers to ensure that each power cord is correctly connected to the corresponding terminal, thus avoiding electrical faults or safety hazards caused by messy wiring or incorrect connections.
[0017] As a preferred embodiment of the above technical solution, the inner cover is made of a transparent material.
[0018] In the above solution, the inner cover is made of transparent material, which allows the light from the photodiode and the panel indicator light to pass through smoothly. This design reduces the loss and interference of light during transmission, and improves the sensing accuracy of the photodiode and the visibility of the panel indicator light.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] In this invention, the corresponding parameters can be adjusted by rotating the potentiometer knobs on the light-control potentiometer, sensitivity potentiometer, and time potentiometer. By rotating the potentiometer knob to control the light-control potentiometer, the user can select the most suitable setting from multiple preset thresholds, ranging from a very low 3 Lux to a relatively high 2000 Lux, according to the actual ambient lighting conditions. This ensures that the sensor can accurately determine whether lighting needs to be triggered under various lighting environments, thereby improving the sensor's adaptability and practicality. By rotating the potentiometer knob to control the sensitivity potentiometer, the user can freely adjust the sensing sensitivity within the range of 0% to 100% to adapt to different environments and needs. This avoids the problem of frequent false triggering and ensures that the sensor can respond promptly to the presence or movement of a human body. By rotating the potentiometer knob to control the time potentiometer, the user can select an appropriate delay time setting (such as 10s, 30s, 90s, 3min, 7min, 15min, etc.) according to actual needs. This ensures that the lighting equipment can switch on and off according to the user's desired time interval, satisfying diverse needs and achieving rational energy utilization. Attached Figure Description
[0021] Figure 1 A schematic diagram of the overall structure of a presence sensor;
[0022] Figure 2 A schematic diagram of the first explosive structure of a presence sensor;
[0023] Figure 3 A schematic diagram of the second explosion structure of a presence sensor;
[0024] Figure 4 This is a schematic diagram of the control circuit board structure for a presence sensor.
[0025] Figure 5 This is a schematic diagram of the bottom cover structure of a presence sensor.
[0026] In the diagram: 10. Inner cover; 11. Control circuit board; 12. TOF module; 13. Light control potentiometer; 14. Sensitivity potentiometer; 15. Time potentiometer; 16. Power circuit board; 17. Screw; 18. Front cover; 19. Bottom cover; 20. Opening; 21. Potentiometer knob; 30. Photodiode; 31. Panel indicator light; 32. Module transparent cover; 33. Opening; 34. Observation port; 40. Wiring slot; 60. Mounting slot; 70. Wiring diagram. Detailed Implementation
[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0028] Example
[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a presence sensor, including an inner cover 10, a control circuit board 11 snapped onto the inner side of the inner cover 10 by a snap fastener, a TOF module 12 disposed on the control circuit board 11, and a light control potentiometer 13, a sensitivity potentiometer 14, and a time potentiometer 15 respectively disposed on the control circuit board 11, the inner cover 10 being snapped onto the upper surface of a bottom cover 19, a power circuit board 16 disposed between the control circuit board 11 and the bottom cover 19, and the power circuit board 16 being fixedly connected by screws 17. The bottom cover 19 is attached to the inside of the bottom cover 19. A front cover 18 is snapped onto the upper surface of the bottom cover 19. Openings 20 are provided on the front cover 18 corresponding to the positions of the light-controlled potentiometer 13, the sensitivity potentiometer 14, and the time potentiometer 15. Potentiometer knobs 21 are fixedly connected to the upper surfaces of the light-controlled potentiometer 13, the sensitivity potentiometer 14, and the time potentiometer 15. The tops of the three potentiometer knobs 21 pass through the corresponding openings 20. A wiring groove 40 is provided on the lower surface of the bottom cover 19 corresponding to the wiring port of the power circuit board 16. A rectangular... The array has four mounting slots 60, and a wiring diagram 70 is marked on the lower end face of the bottom cover 19. In actual use, the entire device is installed in the designated position using the mounting slots 60 on the bottom cover 19. The power cord is correctly connected to the power circuit board 16 via the wiring slots 40 at the lower end of the bottom cover 19 according to the wiring diagram 70. The corresponding parameters can be adjusted by rotating the potentiometer knobs 21 on the light control potentiometer 13, sensitivity potentiometer 14, and time potentiometer 15. The light control potentiometer 13 is used to adjust the light control threshold, which can be adjusted according to the environment. Select an appropriate threshold for the illumination conditions (e.g., 3 Lux, 30 Lux, 300 Lux, 2000 Lux). The sensitivity potentiometer 14 is used to adjust the sensing sensitivity, and the sensitivity range can be adjusted according to actual needs (e.g., 0% to 100%). The time potentiometer 15 is used to set the delay time, and an appropriate delay time can be selected as needed (e.g., 10s, 30s, 90s, 3min, 7min, 15min). After completing the parameter settings, attach the face cover 18 to the upper surface of the bottom cover 19 using a snap fastener.
[0030] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4As shown, photodiodes 30 and panel indicator lights 31 are respectively arranged on both sides of the TOF module 12. The photodiodes 30 and panel indicator lights 31 are fixedly mounted on the control circuit board 11. A transparent cover 32 is snapped onto the TOF module 12. An opening 33 is provided on the inner cover 10 corresponding to the position of the TOF module 12. The inner cover 10 is made of transparent material. An observation port 34 is provided on the front cover 18 corresponding to the positions of the TOF module 12, photodiodes 30, and panel indicator lights 31. In actual use, the product uses time-of-flight (TOF) technology for presence sensing. This technology can accurately detect the presence or absence of objects, thereby achieving... The system features intelligent adjustment of light brightness. When an object enters the sensing range, the panel indicator light 31 illuminates and the light fixture is activated. When the object leaves, the light fixture is turned off, achieving high efficiency and energy saving. The photodiode 30 can detect the ambient light brightness in real time, providing key data for intelligent dimming. The inner cover 10 is made of transparent material and has an opening 33 at the position corresponding to the TOF module 12, allowing users to intuitively see the working status of the TOF module 12. The observation port 34 on the front cover 18 allows users to easily view the status of the panel indicator light 31. In addition, it allows the photodiode 30 to detect the ambient light brightness through the inner cover 10 and the observation port 34.
[0031] Working principle: The entire device is installed in the designated position through the mounting groove 60 on the lower end face of the bottom cover 19. The power cord is correctly connected to the power circuit board 16 through the wiring groove 40 at the lower end of the bottom cover 19 according to the wiring diagram 70. The corresponding parameters can be adjusted by rotating the potentiometer knobs 21 on the light control potentiometer 13, the sensitivity potentiometer 14, and the time potentiometer 15. The light control potentiometer 13 is used to adjust the light control threshold, and an appropriate threshold (such as 3 Lux, 30 Lux, 300 Lux, 2000 Lux) can be selected according to the ambient light conditions. The sensitivity potentiometer 14 is used to adjust the sensing sensitivity, and the sensitivity range (such as 0% to 100%) can be adjusted according to actual needs. The time potentiometer 15 is used to set the delay time, and an appropriate delay time (such as 10s, 30s, 90s, 3min, 7min, 15min) can be selected as needed. After completing the parameter settings, the front cover 18 is snapped onto the upper surface of the bottom cover 19. The product uses Time-of-Flight (TOF) technology for presence sensing. This technology can accurately detect the presence of objects, thereby achieving intelligent adjustment of light brightness. When an object enters the sensing range, the panel indicator light 31 lights up and the light is turned on; when it leaves, the light is turned off, achieving high efficiency and energy saving. The photodiode 30 can detect the ambient light brightness in real time, providing key data for intelligent dimming. The inner cover 10 is made of transparent material and has an opening 33 at the position corresponding to the TOF module 12, allowing users to intuitively see the working status of the TOF module 12. The observation port 34 on the front cover 18 allows users to easily view the status of the panel indicator light 31. In addition, it allows the photodiode 30 to detect the ambient light brightness through the inner cover 10 and the observation port 34.
[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A presence sensor, comprising an inner cover (10), characterized in that: The inner cover (10) is connected to the control circuit board (11) by a snap fastener. The control circuit board (11) is provided with a TOF module (12), and the control circuit board (11) is provided with a light control potentiometer (13), a sensitivity potentiometer (14) and a time potentiometer (15). The inner cover (10) is connected to the upper surface of the bottom cover (19) by a snap fastener. A power circuit board (16) is provided between the control circuit board (11) and the bottom cover (19). The power circuit board (16) is fixedly connected to the inner side of the bottom cover (19) by screws (17). The top cover (18) is connected to the upper surface of the bottom cover (19) by a snap fastener.
2. The presence sensor according to claim 1, characterized in that: The cover (18) has openings (20) at the positions corresponding to the light control potentiometer (13), the sensitivity potentiometer (14) and the time potentiometer (15). Potentiometer knobs (21) are fixedly connected to the upper surfaces of the light control potentiometer (13), the sensitivity potentiometer (14) and the time potentiometer (15). The tops of the three potentiometer knobs (21) pass through the corresponding openings (20).
3. A presence sensor according to claim 1, characterized in that: The TOF module (12) is provided with a photodiode (30) and a panel indicator (31) on both sides respectively. The photodiode (30) and the panel indicator (31) are fixedly mounted on the control circuit board (11). The TOF module (12) is connected to a module transparent cover (32) by a snap fastener. The inner cover (10) has an opening (33) corresponding to the position of the TOF module (12). The outer cover (18) has an observation port (34) corresponding to the positions of the TOF module (12), the photodiode (30) and the panel indicator (31).
4. A presence sensor according to claim 1, characterized in that: The bottom cover (19) has a wiring groove (40) on the lower end corresponding to the wiring port of the power circuit board (16).
5. A presence sensor according to claim 1, characterized in that: The bottom cover (19) has four mounting slots (60) arranged in a rectangular array.
6. A presence sensor according to claim 1, characterized in that: The bottom cover (19) has a wiring diagram (70) marked on its lower end face.
7. A presence sensor according to claim 1, characterized in that: The inner cover (10) is made of transparent material.